Identifying Harmless Fungal Growth on Palm Trunks and Wooden Structures in Coastal Gardens

White, Dry, Waxy Growth on Trunks and Fence

The white, solid, dry material at the base of your palms and on the adjacent fence is likely a saprophytic fungus—feeding on dead organic matter, not harming living tissue.

Action

• If plants show no stress (wilting, discoloration), the fungus is benign.
• You can scrub it off mechanically.
• A copper fungicide spray may reduce its spread.

Monitor for any decline in the palms; if they remain healthy, no aggressive treatment is needed.